Anders_R

Check the loggs mate pls but it works decent in 3rd gear i think ;p thats strange


EDIT: i allso logged the CCN and TCN dunno if that helps u with anything

SonicRaT

iTrader: (6)

Ok, here's a quick look at all three logs broken down by each pull.

The breakdown is like this:

RPM - Boost for each log at this point (2-33, 2-333, Log_20130609_1324)
The * marks the sequential transition spot

First Pull:
4500 - 71 71 71
4600 - 69 70 70
4700 - 67* 68 67*
4800 - 64 66* 64
4900 - 57 60 55
5000 - 55 52 52
5100 - 55 55 49
5200 - 53 54 47
5300 - 51 54 44
5400 - 50 53 42
5500 - 49 53 41
5600 - 48 54 40
5700 - 49 55 38
5800 - 48 56 38
5900 - 48 55 36
6000 - 48 56 35
6100 - 50 57 35
6200 - 51 59 38
6300 - 54 61 40
6400 - 57 66 48
6500 - 63 66 67
6600 - 70 67 74

Second Pull:
4500 - 72* 72 72
4600 - 70 71* 71*
4700 - 64 66 60
4800 - 63 60 59
4900 - 59 59 57
5000 - 60 58 60
5100 - 62 61 64
5200 - 63 64 66
5300 - 66 64 66
5400 - 67 65 65
5500 - 66 66 66
5600 - 66 66 65
5700 - 66 66 66
5800 - 66 65 66
5900 - 65 65 65
6000 - 66 65 65
6100 - 65 65 65
6200 - 65 66 65
6300 - 65 66 66
6400 - 65 66 66
6500 - 65 67 66
6600 - 65 66 67


You can see that at the transition points, boost is dropping off dramatically, and slowly rising trying to get back to its preset value. However, it's never reaching that value. This is indicative of a conservative duty cycle. You can see how the middle pull (the one you changed the duty cycle on) falls off less than the others and comes up sooner in the first pull. So, we appear to be on the right track.

Try something like this, and lets see where your peak boost fits and how that transition looks.

PR - 50
SC - 55

Oh, it may also be helpful if you record the advanced settings instead of the basic, then we can see whats going on with the duty cycle for the wastegate.

Anders_R

Hi mate! ah i see, the 3rd gear is almost looking identical on all 3 loggs atleast thats something :P When i tried the 45% on PR the boost went to 0,85 bar on Primary Turbo :P. but how come it only dip to 0,39 bar "sometimes"? as u can see on the 2 other loggs its like on 0,5. thats what i dont get. Its no leak anywhere?

Anders_R

oh 1 more thing also, when the car was on dyno and tuner did full run @4th gear when he droped the throttle @full run it came little bit of white smoke from the exhaust maybe second turbo is not in same condition as first. though it should be better than this anyway. just trying to get as much info as needed for my logg run tomorow. as my laptop dont got the best battery ;P

SonicRaT

iTrader: (6)

Ok, so at PR 45 you were nearing 0.85? Lets try 40 and see if you can get it close to your target area of 0.80. Next, we'll deal with the wastegate and correcting your after transition boost, which is currently low.

PR - 40
SC - 50

PR - 40
SC - 55

Also, if you can make sure each of these runs is on a generally flat surface, it'll help remove all the possible variables. Ideally, on a high gear run, you should see a brief dip in boost, then have it come back to your target level through the rest of the band. I wouldn't worry too much about the variance of the 2nd gear runs, other than the improvement by increasing the duty cycle. Since there isn't as much load in 2nd gear, a lot of other factors can play a part in those variations.

Anders_R

Hi mate!
Ah okey do u want full run in 3rd gear only or 4th? Feels like 3rd gear was decent in logs or? Maybe little more boost though would be good..
Also if i raise Sc to 50 isnt there a high chance for higher boost in like 4th gear ?

SonicRaT

iTrader: (6)

3rd and 4th will work if you have a safe enough area for it. You're a good bit off your target boost when you had it at 43, so going to 50 should get you a good bit closer to that target. If you are close enough at 50 to the 0.80, then don't worry about increasing it again for another run, maybe in that case then just get a 2nd-3rd-4th run so we can see how each gear is behaving. Right now, we just need to get the secondary boost up to the target.

Anders_R

Will try the settings gonna try get log for 4 gear aswell.
Will post logs after work

Anders_R

OKey! done some loggins now for 2 hours.. damn hot lol ;p

Anyway i didnt do to much changes on the setting. 41-44 on PR and 55-61 on SR
Last run "logg3333" and both "logg2-22" same settings Pr-44 sr 61. as u can see the turbo ***** upp in the first 2nd gear logg but 1 min after when i start the next logg in 2nd gear it goes good.. i cant understand it. happened sometimes today in 3rd gear aswell without changing settings..

Overall i think the 44-61 works good what do u think ? check all loggs mate and see what u think. loggs inc!

SonicRaT

iTrader: (6)

Those settings look pretty good on the log side. I can't seem to find a good reason for the big drop off in 2nd gear. The only difference in the log is the RPM you started the pull. Which transition points are you currently using? The ones your tuner had put in, or the ones arghx suggested?

Edit: Judging by the RPM in the log, it seems to be the original ones the tuner used. You could try swapping in the ones arghx suggested and see if it helps, now that your duty cycles are in good shape.

Anders_R

U can see the dat files aswell for every logg low: 3000 on all high. 4400 4480 4680.

checked the loggs again maybe the "logg33" is slightly better than the 333? that one was 43-60 it didnt fall as much on transition. though thats is a very small difference so it doesnt matter i guess wich of those settings is 43-60 or 44-62? .

Anyway if u check the WG% on the first logg 2nd gear u can see that the wg% changes alot on the dip it goes back to same wg% as before transition. "222% something" on the second logg it goes to like 135% on transition. bad wg?

SonicRaT

iTrader: (6)

Nope, just the WG doing it's job. The values you see there are out of 255, so a value of 255 would be 100% duty cycle. Because your boost dropped off so much, the ECU was compensating by closing the wastegate more than it did before, thus the higher numbers to get your boost back up. Working as intended.

What's your target boost? If you're fine with being around the 0.70 area, then you can probably leave the duty cycles alone and run the 43-62 setup (your primary looks pretty good).

Now, I'd try just tweaking your transition points and getting that secondary on sooner, which may help that 2nd gear issue you are seeing. Other than that, it looks good for now.

arghx

iTrader: (3)

I looked at log2, log333 and log3333. Try continuing to increase the secondary duty cycle. See how much you can increase it until you might for example see instability in the WG% and/or the boost. Then back off the duty. So try

.70 66% , then 70%, 74%, etc. See what that does. You may already be close to the best transition possible with your setup though.

Anders_R

Hi guys!

So transition is good as i got it now? How is the logg22? That was when turbo didnt **** up. Well im happy With the boost before transition. Sc i would want 0,75 for best but i guess the last run 3333 was decent. Though that was the one With most boost drop on trans. I can try higher % on Sc and see. Pr should stay 43-44?

Anders_R

Also how to tweak the trans as u Said. Switch over to arghx settings?

SonicRaT

iTrader: (6)

The transition looks pretty good right now. It's staying close to exactly what you have set. It's following an 11-8-9.5psi pattern, which is essentially what you have set:

PR - 0.75 (11psi)
SC - 0.65 (9.5psi)

If you want the boost level to be the same after the transition, you need to raise the boost value for the SC to the same as the PR. However, for what you have set right now everything looks good.

At this point, I suggest changing the transition points to the values arghx gave earlier on page 1 and doing a few runs to see how it feels (and log one or two as well). Also, if you want your secondary boost to 0.75, change the SC boost value to match the primary, then you should have a consistent 11-8-11psi boost pattern.

Anders_R

Hi mate! Reason Why i Have 0,65 on the boost guard is just for safety if i did get overboost not the boost i want on Sc :p
So i should try like 66% on Sc then for higher boost?

SonicRaT

iTrader: (6)

Ok, makes sense now. Just set your SC to 0.75 and you should be set. The DC looks pretty good, you can tweak it higher some more, but set your boost to 0.75 and then tweak from there. Once you start to get spikes or start creeping over 0.75 then back it off again. You're pretty close though already. I'd throw the boost level to 0.75, change the transition points, see how it feels like that, and then if needed tweak the SC duty cycle some afterwards.

Anders_R

Hmm if i set the guard to 0,75 does the boost change then?
I thought that was a safety guard only lol

SonicRaT

iTrader: (6)

Yes, the value you enter there is the 'target' boost that the PoweFC will try to maintain. The PFC will cut fuel whenever you are 0.25 over this value. So yes, this value will change your boost levels. The duty cycle gives you control over how the system functions, by adjusting the rates of the wastegate. Too low of a value, and you'll introduce some lag and boost drop, too high of a value and you'll introduce spikes as the controller tries to compensate. So, set it to your desired value now, fix the transition points, do a few runs and see how things look. Then you can slowly increase the SC duty cycle to see if you can get some better response and control, but be on the lookout for spikes.

Anders_R

Hi

Ah lol then i Have failed big time...
Maybe det dutys are fail now if i change the target boost?
Maybe i Have to do it all over again With New targets?:/

Tuner Said i could Have Max 0,9 bar primary and Sec 0,8 Max.. So i guess i can do 0,85 prim and like 0,75 Sec. So little more power

SonicRaT

iTrader: (6)

It has not all been in vain. It's gotten things a lot better than they were before. You won't have to start from scratch, just set your targets each to around .75 or .80, see how things go, and then dial in the duty cycle from there. Should be getting pretty close with where they are at though.

Anders_R

Hi mate

Ah okey, i will test and we see will do a logg for u aswell when i switch to:

0,80 pr
0,75 Sc and Arghx trans settings

Anders_R

Hi! w8ing for the clock to get more late so traffic dissapear :P

i was just thinking if i change the trans to arghx. isnt 5400 really late trans switch? the one i got now is like 4600~ thats 800 rpm later is that not worse? Turbo2 kicking in so late?

SonicRaT

iTrader: (6)

That is why there is also a TPS value too. If under very light throttle, it will wait before transition. That is why there are three entries for transition.